Title :
Autotuner for fuzzy controller-relay based approach
Author :
Makkonen, Arto ; Koivo, Heikki N.
Author_Institution :
Control Eng. Lab., Tampere Univ. of Technol., Finland
Abstract :
The paper suggests an automatic tuning method for fuzzy controller of an unknown system. Tuning is composed of rough tuning and fine tuning phases. The main idea is to obtain a second-order model for the process from two points on the Nyquist plane and to perform optimization of the fuzzy controller rule-base with this model. The two frequency points are found using a simple estimation technique from relay control results
Keywords :
Nyquist diagrams; adaptive control; fuzzy control; intelligent control; relay control; self-adjusting systems; Nyquist plane; automatic tuning method; fine tuning; fuzzy controller autotuner; fuzzy controller rule-base optimization; relay based approach; relay control; rough tuning; second-order model; unknown system; Automatic control; Control systems; Cost function; Frequency estimation; Fuzzy control; Fuzzy systems; Least squares approximation; Nonlinear control systems; Relays; Tuning;
Conference_Titel :
Fuzzy Systems, 1995. International Joint Conference of the Fourth IEEE International Conference on Fuzzy Systems and The Second International Fuzzy Engineering Symposium., Proceedings of 1995 IEEE Int
Conference_Location :
Yokohama
Print_ISBN :
0-7803-2461-7
DOI :
10.1109/FUZZY.1995.409951
